Other side tool support base and/or other side tool post mounted to casting breaking apparatus, and bearing of the other side tool support base

ABSTRACT

In a background art, one side and other side tool apparatus (casting breaking apparatus) upper and lower faces of which are opened are constituted by one side and other side tool support bases, one side and other side tool posts provided at the one side and the other side tool support bases, a number of pieces of one side and other side tools in a ridge shape projected from the one side and the other side tool posts respectively in a zigzag shape and brought into a fitting relationship, and movable means (cylinder) for making the other side tool post movable, and characterized in that sliding faces provided at both sides of the other side tool support base and/or the other side tool post are advanced and retreated along an inner face of a side plate. Further, explaining an operation (method) of crushing and breaking of the casting breaking apparatus, in retreating the other side tool post, a casting waste is thrown from a throwing opening (throwing port) formed between the other side tool post and the one side tool post, and the casting waste is broken by utilizing a fitting relationship between the other side tool of the other side tool post advanced by the cylinder and the one side tool of the one side tool post. The sliding face of the other side tool post is advanced or retreated to be brought into sliding contact with the sideplate of the breaking apparatus. By the advance, the casting waste thrown to the casting breaking apparatus is broken, and by the retreat, a broken piece of the broken casting waste is discharged from a discharge port formed between the other side tool post and the one side tool post by natural dropping. 
     Further, according to the kind of apparatus, the other side tool post is brought into sliding contact with the side plate when the other side tool post is made to be movable, and there is a probability of generating wear at the face to be slid (sliding face). Further, when a particle, or a small piece of the casting waste invades a gap between the other side tool post and the side plate, a problem of accelerating a degree of the wear is conceivable. 
     In view of the above-described, according to the invention, by constituting other side tool support base and/or other side tool post mounted to a casting breaking apparatus constructed by a constitution in which both sides of other side tool support base and/or other side tool post are formed with sliding faces brought into sliding contact with both side plates, the sliding face is formed with a cut recess streak reaching upper and lower sides of the sliding face, the cut recess streak is subjected to overlay welding, and an overlay weld streak piece substantially in flush with the sliding face is formed by polishing means for making an overlayer of the overlay welding substantially in flush with the sliding face, it is intended to make wear of the sliding face as less as possible, or, when a particle or a small piece of the casting waste invades a gap between the other side tool support base and/or the other side tool post and the side plate, a degree of wear is accelerated, and therefore, it is intended to avoid the wear. 
     Further, according to the invention, an axially fixed portion provided at the side plate of supporting the other side tool support base is constituted by a bearing provided at the side plate, a thin-walled ring-like metal provided at an inner peripheral face of the bearing, and dust seals provided at both ends of the inner peripheral face of the bearing, and it is intended to protect the axially fixed portion of the other side tool support base on a movable side applied with a load, or swiftly execute repair in failure.

TECHNICAL FIELD

The present invention relates to other side tool support base and/orother side tool post mounted to a casting breaking apparatus ofcrushing/breaking (defined as breaking) a casting waste of a sprue, arunner, a weir, a failed casting or the like, and a bearing of the otherside tool support base.

BACKGROUND ART

With regard to other side tool support base and/or other side tool postmounted to a casting breaking apparatus, and a breaking method(crushing/breaking apparatus) related to a bearing of the other sidetool support base and/or the other side tool post of the title, aninvention related to a proposal of the applicant has been disclosed inJapan and United States or Europe. Explaining an example thereof, thereis present “apparatus of crushing/breaking weir, runner, failed productor the like for casting by hydraulic pressure” of JP-A-6-106083, “methodof breaking casting and tool structure” of JP-A-2002-224580 of JapaneseApplication, or “CRUSHING-BREAKING APPARATUS” of U.S. Pat. No.5,791,573, or “An apparatus for crushing-breaking useless castingproducts using a fixed and a rocking cutter device and method forcoating said cutting devices” of European Application Publication PatentNo. 0919283. Basic structures of the background arts may be explained inoutlines (1), (2) shown below.

First, according to outline (1), explaining constitutions of anapparatus, and other side tool post constituting a main body of theapparatus, one side/other side tool apparatus (casting breakingapparatus) upper and lower faces of which are opened is constituted byone side/other side tool support bases, one side/other side tool postsprovided at the one side/other side tool support bases, a number ofpieces of one side/other side tools in a ridge shape respectivelyprojected in a zigzag shape at the one side/other side tool posts andbrought into a fitting relationship, and movable means (cylinder) formaking the other side tool support base movable. Further, explaining acrushing/breaking operation (method) of outline (1), a casting waste iscrushed/broken (defined as broken) by utilizing a relationship offitting other tool of other tool post advancing by the cylinder, and oneside tool of the one side tool post by throwing in useless sprue,runner, weir, failed casting or the like (defined as casting waste) froma throwing opening (throwing port) (formed between other side tool postand one side tool post) of a casting breaking apparatus in retreatingthe other side tool post. The other side tool post is made to be movable(advanced or retreated) to be brought into a sliding contact with asideplate of the breaking apparatus. By advancing the other side tool post,the casting waste thrown in the casting breaking apparatus is broken,and by retreating the other side tool post, a broken casting wastebroken piece is discharged from a discharge port (outlet) of the castingbreaking apparatus by natural dropping.

Further, according to the kind of the apparatus, the other side toolsupport base and/or the other tool post is brought into sliding contactwith the sideplate in being made to be movable, and there is aprobability of generating wear (loss) in the face to be slid (slidingface). Further, when a particle or a small piece of the casting wasteinvades a gap between the other tool base and the side plate, a problemof accelerating a degree of the wear is conceivable.

Next, according to outline (2), explaining an apparatus and a bearingstructure of other side tool post constituting a main body of theapparatus, one side/other side tool apparatus (casting breakingapparatus) upper and lower faces of which are opened is constituted by aside plate provided along therewith, one side tool post an upper side ofwhich is axially fixed between the side plates, other side tool post alower side of which is axially fixed to the side plate, a number ofpieces of one side/other side tools in a ridge shape respectivelyprojected in a zigzag shape at the one side/other side tool posts andconstituting a fitting relationship, and movable means (cylinder) formaking the other side tool post movable. Further, explaining anoperation (method) of the one side/other side tool posts of the outline(2), the other side tool post is advanced and retreated by constitutinga fulcrum by a portion axially fixed (axially fixed portion). Inadvancing, the other side tool post breaks the casting waste. Further,in the breaking, a large load is applied to the axially fixed portion,and therefore, a constitution capable of withstanding the load isadopted. Further, there is constructed a constitution in which when apredetermined or more load is applied to the other side tool post, theother side tool post is temporarily retreated, and avoids a failurebrought about at an axially fixed portion and/or a portion of theapparatus. However, in a metal structure of the axially fixed portion,with regard to a structure of swiftly repairing a failure when thefailure is accidentally brought about, the structure is not regarded tobe necessarily sufficient, or to achieve a standardization ofmaintenance thereof, more or less room for improvement is conceivable.

Further, according to the kind of the metal structure, there isconceivable a problem in which when a particle or a small piece of acasting waste invades an inner portion thereof, a function thereof isdeteriorated, and wear of the metal is accelerated.

Further, according to the invention, in the other side tool post mountedto the casting breaking apparatus of the background art, in order toavoid wear of the sliding face, an overlaid reinforcing portion(overlaid streak piece) is worked at the sliding face by welding. Withregard to the overlaid reinforcing portion by welding, in the kind ofbreaking apparatus, an invention of working the overlaid reinforcingportion similarly has been proposed by the applicant. Explaining oneexample thereof, there is present, for example, “method of coatingfixed/moving tools of apparatus of breaking failed product of weir,runner, sprue or the like for casting for producing recycled casting rawmaterial, and fixed/moving tools thereof” of JP-A-2000-42435, or “Anapparatus for crushing-breaking useless casting products using a fixedand a rocking cutter device and method for coating said cutting devices”of Europe Application Publication Patent No. 0919283. Basic structuresof the background arts will be explained by outline (3) shown below.

According to outline (3), in JP-A-2000-42435, a constitution shown inFIG. 10 discloses a technology of carrying out overlay welding bycoating on a sliding face (sliding face of the invention) of a movingbase (other side tool support base of the invention) to improve thesliding face constituting a problem of a background art beforeJP-A-2000-42435 (July 27, Heisei 10). However, the invention isconstructed by a constitution of axially supporting an axially fixedportion of other side tool support base by way of a fulcrum bearingmechanism and in order to make the other side tool support base fixedportion smoothly movable, a problem to be improved is pointed out.

DISCLOSURE OF THE INVENTION

As described above, in outlines (1) through (3), the description of thebackground art and points to be improved of the background art arerespectively individually explained.

Hence, the invention intends to ensure maintenance free of the breakingapparatus ultimately while achieving convenience of use of the breakingapparatus and durability of the apparatus by improving the backgroundart. In order to achieve the object, according to the invention, as “1”,there is constructed a constitution in which each of sliding facesformed on both sides of the other side tool support base and/or otherside tool post is formed with a cut recess streak reaching upper andlower sides of the sliding face, the cut recess streak is subjected tooverlay welding, and an overlay weld streak piece substantially in flushwith the sliding face is formed by polishing means for making anoverlayer of the overlay welding substantially in flush with the slidingface. Further, as “2”, there is constructed a constitution in which theaxially fixed portion of the other side tool support base provided atthe sideplate is a bearing of the other side tool support baseconstituted by a bearing provided at the side plate, a thin-walledring-like metal provided at an inner peripheral face of the bearing, anddust seals provided at both ends of the inner peripheral face of thebearing.

ADVANTAGE OF THE INVENTION

The invention of claim 1 is constructed by the constitution in whicheach of the sliding faces formed on both sides of the other side toolsupport base and/or other side tool post is formed with the cut recessstreak reaching the upper and lower sides of the sliding face, the cutrecess streak is subjected to overlay welding, and the overlay weldstreak piece substantially in flush with the sliding face is formed bypolishing means for making the overlayer of the overlay weldingsubstantially in flush with the sliding face. Therefore, the inventionis characterized in capable of achieving prevention of wear of thesliding face of the other side tool support base and/or the other sidetool post, and even when a particle or a small piece of the castingwaste invades a gap between the other side tool post and the side plate,the invention is capable of effectively preventing wear of the slidingface.

Next, the invention of claim 2 is constructed by a constitution in whichboth end portions in a longitudinal direction of the sliding face(direction reaching a lower end from an upper end thereof) are formedwith overlay weld streak pieces substantially in flush therewith.Therefore, the invention is characterized in capable of firmly reducingwear of a portion of the other side tool post liable to receive animpact the most, and capable of effectively preventing wear of thesliding face by reducing a particle, or a small piece of the castingwaste invading a gap between the other side tool post and the sideplate.

The invention of claim 3 is characterized in that an axially fixedportion of the other side tool support base is constituted by a metalstructure, when a failure is brought about accidentally, a structure ofcapable of being repaired swiftly is constituted, or standardization ofa maintenance thereof is achieved or the like. Further, in the kind ofmetal structure, there is achieved an advantage in which when a particleor a small piece of the casting waste invades an inner portion thereof,a structure of not deteriorating a function thereof is constituted, astructure of not accelerating wear of the metal can be provided or thelike.

The invention of claim 4 achieves an advantage in which the object ofclaim 3 can be achieved, or a metal structure optimum and effective inachieving the object can be provided. The invention of claim 5 achievesan advantage in which the object of claim 3 can be achieved, and a dustseal optimum and effective for achieving the object can be provided orthe like.

BRIEF DESCRIPTION OF THE DRAWINGS

First, explaining the drawings,

FIG. 1 is a reduction scale side schematic view of a total of a breakingapparatus,

FIG. 2 is a plane schematic view of FIG. 1,

FIG. 3 is a front schematic view of FIG. 1, and

FIG. 4 is a rear schematic view of FIG. 1. Further,

FIG. 5 is a front schematic view, showing a total of other side toolsupport base,

FIG. 6 is a side schematic view of FIG. 5, and

FIG. 7 is a rear schematic view of FIG. 5. Further,

FIG. 8 is a front schematic view showing a total of other side toolpost,

FIG. 9 is a side schematic view of FIG. 8, and

FIG. 10 is a rear schematic view of FIG. 8. Further,

FIG. 11 is a perspective view of explaining a state of forming a cutrecess streak at a sliding face of other side tool support base and/orother side tool post.

FIG. 12 is an enlarged front view constituting a section by a portion ofan axially fixed portion of other side tool apparatus.

BEST MODE FOR CARRYING OUT THE INVENTION

A basic structure of a breaking apparatus of the invention is shown inFIG. 1 through FIG. 4, explaining an example thereof, numeral 1designates a breaking apparatus (crushing and/or breaking apparatus) ofa casting waste, and the breaking apparatus 1 constitutes mainconstituent elements by a frame 3 upper and lower sides of which areopened constituted by side plates 2 a, 2 b and a bridging plate 2 c, oneside tool apparatus 4 (fixed tool apparatus) and other side toolapparatus 5 (moving tool apparatus) provided at the frame 3, a cylinder6 of advancing and retreating the other side tool apparatus 5, and adamper 7.

First, the one side tool apparatus 4 is constituted by one side toolsupport base 40 provided at the frame 3 for attaching a tool post, oneside tool post 41 attachably and detachably provided at the one sidetool support base 40, and a number of pieces of one side tools 42(receive tools, or press tools) for crushing/breaking in a shape of atruncated cone provided in a zigzag shape at the one side tool base 41.Further, a curved face shape inclined face 42 a of the one side tool 42in the truncated cone shape is provided with an inclination by which abroken casting (broken casting which can be reutilized) can firmly andnaturally be dropped. The one side tools 42 are arranged in the zigzagshape, and a space A capable of fitting other side tool 52 in atruncated cone shape of the other side tool apparatus 5 mentioned lateris formed between the one side tools 42, and the other side tool 52 ofthe other side tool apparatus 5 mentioned later is fitted to the spaceA. The broken casting is dropped in a fitting gap formed by the otherside tool 52 of the other side tool apparatus 5 fitted to the space A,and the one side tool 42 of the one side tool apparatus 4. Further, abottom side 42 b of the one side tool 42 is provided with a bottom sideridge portion 43 projected in a ridge-like shape. The bottom side ridgeportion 43 can achieve efficient breaking and/or cutting, crushing orthe like of a casting waste, a casting product, other casting (definedas raw material W) or the like and prevention of squeezing a recycledcasting W1 (recycled casting/raw material for casting) between the oneside tool 42 and/or the other side tool 52, and therefore, for example,the bottom side ridge portion 43 is effective in breaking and/or cuttingof a lump-like raw material W′ and breaking of an elongated raw materialW″. Further, the bottom side ridge portion 43 is characterized incapable of achieving prevention of scattering of the recycled castingW1, pressing (pressing stress) of the recycled casting W1 present inmiddle of the breaking apparatus 1 to a discharge port 12 of thebreaking apparatus 1 (to a lower side) and breaking thereof (breakingforce) simultaneously. In the drawing, numeral 44 designates a rib shapetool provided between the one side tools 42 for breaking/cutting.Further, the rib shape tool 44 is effective in breaking and pressing tothe lower side, or reinforcing the one side tool 42 and/or other sidetool 52 or the like.

The other side tool apparatus 5 is constituted by other side toolsupport base 50 provided to be movable (able to advance or retreat) byway of an axially fixed portion 8 provided on a lower side of the frame3 (fulcrum 5 a on a lower side), other side tool post 51 attachably anddetachably provided to the other side tool support base 50 and a numberof pieces of the other tools 52 (press tools) for crushing/breaking in atruncated cone shape provided in a zigzag shape on the other side toolpost 51. Further, a curved face shape inclined face 52 a of the otherside tool 52 in the truncated cone shape is provided with an inclinationby which the recycled casting W1 can firmly and naturally be dropped.The other side tools 52 are arranged in the zigzag shape, and a space A′of the other side tools 52 is fitted with the one side tool 42 in thetruncated cone shape of the one side tool apparatus 4 (other side tools52 and one side tools 42 inserted between the spaces A and spaces A′).Further, a bottom side 52 b of the other side tool 52 is provided with abottom side ridge portion 53 projected in a ridge shape. The bottom sideridge portion 53 can achieve efficient breaking and/or cutting, crushingor the like of the casting waste, the casting product, other casting(defined as raw material W) or the like and prevention or the like ofsqueezing the recycled casting W1 (recycled casting/raw material forcasting) between the other side tools 52 and/or one side tools 42, andtherefore, the bottom side ridge portion 53 is effective in breakingand/or cutting of the lump-like raw material W′ and breaking of theelongated raw material W″. Further, the bottom side ridge portion 53 ischaracterized in capable of achieving prevention of scattering of therecycled casting W1, pressing (pressing stress) of the recycled castingW1 present in the middle of the breaking apparatus 1 to the dischargeport 12 of the breaking apparatus 1 (to lower side) and breaking(breaking force) simultaneously. In the drawing, numeral 54 designates arib shape tool for crushing/breaking provided between the other sidetools 52. Further, the rib shape tool 54 is effective in breaking andpressing to the lower side, or reinforcing the other side tool 52 and/orthe one side tool 42 or the like.

Further, side faces 50 a, 51 a of the other side tool support base 50and/or other side tool post 51 of the other side tool apparatus 5constitute sliding faces 500, 510 brought into contact with the sideplates 2 a, 2 b (left and right ones thereof are the same, andexplanation will be given of one side thereof). Further, a cut recessportion 500 a is recessed in a longitudinal direction of the slidingface 500 of the other side tool support base 50, overlay welding iscarried out by utilizing the cut recess portion 500 a, and an overlaywelding streak piece 500 b substantially in flush with the sliding face500 is formed by polishing means for making overlayer of overlay weldingsubstantially in flush with the sliding face 500. As means of recessingthe cut recess portion 500 a, the cut recess portion 500 a iscontinuously fabricated by utilizing a jig shown in FIG. 11. Further, asthe polishing means, polishing is carried out by a grinder, a workingmachine, a robot operation or the like. Further, a cut recess portion510 a is recessed in a longitudinal direction of the sliding face 510 ofthe other side tool post 51, overlay welding is carried out by utilizingthe cut recess portion 510 a, and an overlay streak piece 510 bsubstantially in flush with the sliding face 510 is formed by polishingmeans of making an overlayer of the overlay welding substantially inflush with the sliding face 510. As a method of recessing the cuttingrecess portion 510 a, the cut recess portion 510 a is fabricatedcontinuously by utilizing the jig shown in FIG. 11 which is used toassist. The other corresponds to the above-described example. Further,an increase in strengths of the other side tool support base 50 and theother side tool post 51 and avoidance of chip off thereof are achievedby a synergetic effect of hardening by quenching in working the cutrecess portions 500 a, 510 a, hardening by overlay welding, hardening bypolishing means of making the sliding faces 500, 510 substantially inflush therewith or the like.

Further, numeral 13 in the drawings designates a hole for a fasteningpiece for attaching the one side and the other side tool posts 41, 51 tothe one side and the other side tool support bases 40, 50.

Further, the axially fixed portion 8 is constituted by a fulcrum bearing80 provided at the side plate 2 a, a thin-walled ring-like metal 81provided at an inner peripheral face 80 a of the fulcrum bearing 80, anda dust seal 82 provided at both ends 80 b, 80 c of the inner peripheralface 80 a of the fulcrum bearing 80. An axial shaft 9 is supported bythe fulcrum bearing 80 by way of the ring-like metal 81. Therefore, aload applied to the other side tool support base 50 is transferred tothe axial shaft 9, however, the axial shaft 9 is supported by thefulcrum bearing 80 by way of the ring-like metal 81 and is constitutedby a structure of capable of sufficiently withstanding the load.Thereby, there is provided a characteristic of capable of ensuring adurability of the axially fixed portion 8, further, avoidance of afailure of the axially fixed portion 8, or a reduction in noise,further, being effective in resolving squeak or the like. Further, as inthe illustrated example, by constituting the ring-like metal 81 as adivided type for achieving to facilitate to interchange, low costformation or the like and achieving to switch a portion applied with aload and easy to be worn, it is intended to contribute to a reduction incost, a reduction in an interchanging frequency, and an effectiveness inmaintenance. Further, the axial shaft 9 constituting the axially fixedportion 8 is concealed by way of an attachable and detachable plate 90.Further, the other side tool support base 50 is provided with a notchedportion 9 a for inserting the axial shaft 9.

Further, at a fulcrum 5 b on an upper side of the other side toolapparatus 5, the other side tool apparatus 5 is made to be movable(move) by constituting a support axis by the axially fixed portion 8 byway of expansion and contraction of a piston rod 61 of the cylinder 6.That is, the other side tool 52 on the moving side is brought intocontact with and separated from the one side tool 42 on the fixed side,further, the piston rod 61 is axially fixed to the upper side of theother side tool support base 50, and therefore, a lever motion mechanismis constituted by the axially fixed portion 8 (fulcrum) and the upperposition at which the piston rod 61 is axially supported, and the otherside tool support base 50 is pressed by the lever motion mechanism.Further, although not illustrated, the piston rod 61 can also besupported by an axial shaft of the ring-like metal structure.

The damper 7 is provided with a small space H from a horizontal lowerend bottom portion 4 a of the one side tool apparatus 4, and movably byan axial shaft 7 a provided at an inner side of the frame 3 more than afulcrum shaft 4 b of the one side tool apparatus 4, and the movement iscarried out by utilizing a pneumatic cylinder 10. The pneumatic cylinder10 is a cantilever having a fulcrum shaft 10 a on an upper side of theframe 3, and a piston rod side 10 b thereof is movably provided.Further, a pneumatic pressure of the pneumatic cylinder 10 can beadjusted by a valve, a constitution of capable of dealing with a loadnecessary for the damper 7 is adopted to govern automatic opening andclosing of the damper 7. Therefore, for example, when the recycledcasting W1 is piled up to the damper 7, and the pneumatic pressure isincreased more than a set pneumatic pressure, the damper 7 is loweredautomatically and the discharge port 12 is opened. Thereby, resolvingthe load on the damper 7 and firm discharge are achieved. By cooperatingthe discharge and the movableness of the other side tool apparatus 5,there is achieved an advantage of efficient and firm breaking, smooththrowing of the raw material W, smooth discharge of the recycled castingW1. Further, the discharge of the recycled casting W1 from the dischargeport 12 is carried out smoothly by way of a forward lowering inclination7 b provided at the damper 7. Further, by providing the damper 7 at thedischarge port 12, dropping of the elongated raw material W″ can beavoided, and avoidance of the dropping is further achieved by thesynergetic effect with a welding rib (not illustrated) provided at thedamper 7. The welding rib is characterized in being formed in overlay inseries in a linear shape or an inclined shape or the like by weldingnormally in a longitudinal direction of the damper 7, or a directionorthogonal to the longitudinal direction (dropping direction),increasing a strength thereof, preventing destruction/wear, beingutilized as a breaking tool or the like. Further, as described above,the damper 7 is provided with the small space H from the horizontallower end bottom portion 4 a, and the damper 7 is provided movably byway of the axial shaft 7 a.

Further, there is adopted a constitution in which one sheet or aplurality of sheets of liners 14 are provided at the side plates 2 a, 2b attachably and detachably by fastening pieces, and heads of thefastening pieces are worked substantially in flush therewith bypolishing means to constitute an object of an increase in a durabilityand a long term use of the side plates 2 a, 2 b. Further, the liners 14are constituted to be soft to avoid a friction with the one side and/orother side tool apparatus 4, 5 and eliminate impact of the raw materialW and the recycled casting W1 to the side plates 2 a, 2 b. Further,there is achieved avoidance of a shock by impact of the raw material Wand the recycled casting W1 to the liners 14.

Next, a method for carrying out the invention will be explained. First,in FIG. 1 through FIG. 4, under a situation in which the other side toolapparatus 5 is disposed at a retreat limit, the raw material W is thrownin from an throwing opening 11 formed by opening the upper side of theother side tool support base 50 and/or the other side tool post 51(defined as other side tool post 51) of the other side tool apparatus 5and opening the upper side of the one side tool support base 40 and/orthe one side tool post 41 (defined as one side tool post 41) of the oneside tool apparatus 4. By receiving a comparatively slender raw material(elongated raw material W″) of the thrown raw material W dropped frombetween the one side/other side tools 42, 52 (defined as between twotools) by the damper 7, the raw material W and/or the elongated rawmaterial W″ mentioned later is firmly received and firmly andefficiently broken.

Further, as shown by FIG. 1 and FIG. 2, by moving to advance the otherside tool apparatus 5 along a circular arc locus by constituting thefulcrum by the axially fixed portion 8 on the lower side, operatingsubstantially all of press force of the pneumatic cylinder 10 to thefulcrum shaft 10 a on the upper side of the other side tool 52,operating the press force between the two tools at vicinities thereof,and moving to advance along the circular arc locus, a strong crushingforce and/or breaking force (defined as breaking force) is generatedfrom a principle of a lever between the two tools on the upper side ofthe discharge port 12 at the vicinity of the axially fixed portion 8 onthe lower side, the raw material W thrown from the throwing opening 11is firmly and smoothly broken. The breaking is carried out by utilizingthe fitting relationship of the two tools. The breaking achieves anadvantage useful for downsizing a total of the apparatus, or a reductionin running cost by carrying out the breaking firmly and by a lowpressure force by way of the axially fixed portion 8 and the fulcrumshaft 10 a on the upper side and the pneumatic cylinder 10 and adoptingsuch a constitution. Further, the axially fixed portion 8 ischaracterized in being moved smoothly by way of the ring-like metal 81and the fulcrum bearing 80 and ensured with a load resistance. Further,the broken recycled casting product (recycled casting W1) is naturallydropped successively to the discharge port by way of surfaces of the twotools and/or a gap therebetweeen. Further, according to the invention,the damper 7 is naturally opened when applied with a predetermined load.

Thereafter, although not illustrated, the other side tool apparatus 5disposed at an advance limit is retreated by way of expansion andcontraction of a piston rod 100 of the cylinder 6 and the operation isfinished by reaching the retreat limit as it is.

However, generally, when the raw material W is present between the twotools (partially including recycled casting W1), the other side toolapparatus 5 is advanced again to repeat the breaking operation similarto the above-described. That is, when the raw material W is presentbetween the two tools, advance and retreat of the other side toolapparatus 5 are repeated. Further, when the raw material W is notpresent between the two tools, as a rule, in a state of the retreatlimit, a new raw material W is thrown to the throwing opening 11 similarto the above-described.

Description of Reference Numerals and Signs

-   1 crushing and/or breaking apparatus-   2 a side plate-   2 b side plate-   2 c bridging plate-   3 frame-   4 one side tool apparatus-   4 a horizontal lower end bottom portion-   4 b fulcrum shaft-   40 one side tool support base-   41 one side tool post-   42 one side tool-   42 a inclined face-   42 b bottom side-   43 bottom side ridge portion-   44 rib shape tool-   5 other side tool apparatus-   5 a lower side fulcrum-   5 b upper side fulcrum-   50 other side tool support base-   50 a side face-   500 sliding face-   500 a cut recess portion-   500 b overlay welding streak piece-   51 other side tool post-   51 a side face-   510 sliding face-   510 a cut recess portion-   510 b overlay welding streak piece-   52 other side tool-   52 a inclined face-   52 b bottom side-   53 bottom side ridge portion-   54 rib shape tool-   6 cylinder-   61 piston rod-   7 damper-   7 a axial shaft-   7 b forward lowering inclination-   8 axially fixed portion-   80 fulcrum bearing-   80 a inner peripheral face-   80 b end-   80 c end-   81 ring-like metal-   82 dust seal-   9 axial shaft-   9 a notched portion-   90 plate-   10 pneumatic cylinder-   10 a fulcrum shaft-   10 b piston rod side-   100 piston rod-   11 throwing opening-   12 discharge port-   13 hole-   14 liner-   A space-   A′ space-   H space-   W raw material-   W′ lump-like raw material-   W″ elongated raw material-   W1 recycled casting

INDUSTRIAL APPLICABILITY

As described above, the invention can provide the other side toolsupport base and/or other side tool post mounted to the cast breakingapparatus of crushing/breaking (defined as breaking) the casting wasteof a sprue, a runner, a weir, a failed casting or the like, and thebearing of the other side tool support base, and therefore, theinvention is characterized in being useful for a casting business fieldand an industrial field.

1. Other side tool support base and/or other side tool post mounted to acasting breaking apparatus which is a breaking apparatus constructed bya constitution in which one side between side plates for a frame isprovided with one side tool apparatus an upper face of which is axiallyfixed, other side between the side plates is movably provided with otherside tool apparatus a lower face of which is axially fixed, the otherside tool apparatus is made to be movable by a cylinder provided at theframe by constituting a fulcrum by an axially fixed portion thereof, acasting waste is broken by way of one side and other side tools providedat one side and other side tool posts arranged at the one side and theother side tool apparatus and brought into an opposed relationship, anda piece of the broken casting waste is discharged from a discharge portof the one side and the other side tool apparatus; wherein the castingbreaking apparatus is constructed by a constitution in which both sidesof the other side tool post and/or other side tool support base ofsupporting the other side tool post are formed with sliding facesbrought into sliding contact with the both side plates, the sliding faceis formed with a cut recess streak reaching upper and lower sides of thesliding face, the cut recess streak is subjected to overlay welding, andan overlay weld streak piece substantially in flush with the slidingface is formed by polishing means for making an overlayer of the overlaywelding substantially in flush with the sliding face.
 2. The other sidetool support base and/or the other side tool post mounted to a castingbreaking apparatus according to claim 1, constructed by a constitutionin which the cut recess streaks are provided at both end portions in alongitudinal direction of the sliding face of the other side toolsupport base and/or the other side tool post.
 3. The other side toolsupport base and/or the other side tool post mounted to a castingbreaking apparatus according to claim 1, constructed by a constitutionin which the both side plates for the frame are attachably anddetachably provided with one sheet, or a plurality of sheets of liners.4. A bearing of other side tool support base mounted to a castingbreaking apparatus which is a breaking apparatus constructed by aconstitution in which both side plates for a frame are attachably anddetachably provided with one sheet, or a plurality of sheets of liners,and one side between the side plates is provided with one side toolapparatus an upper face of which is axially fixed, other side betweenthe side plates is movably provided with other side tool apparatus alower face of which is axially fixed, the other side tool apparatus ismade to be movable by constituting a fulcrum by an axially fixed portionthereof by a cylinder provided at the frame, a casting waste is brokenby way of one side and other side tools provided at one side and otherside tool posts arranged at the one side and the other side toolapparatus and brought into an opposed relationship, a piece of thebroken casting waste is discharged from a discharge port of the one sideand the other side tool apparatus; wherein the axially fixed portionprovided at the side plate is constituted by a bearing provided at theside plate, a thin-walled ring-like metal provided at an innerperipheral face of the bearing, and dust seals provided at both ends ofthe inner peripheral face of the bearing.
 5. (canceled)